I found a pump that might work. I will have to call Edelbrock and Essex to get more information on it. There is no max pressure listed for it. The pump is quite expensive compared to the average everyday Walbro pump. But if it works and they can guarantee it, it's well worth it.
Let me know your thoughts. It is listed as "Quiet-Flo™ Electric Fuel Pumps for EFI Applications". Part #1794
http://www.edelbrock.com/automotive_...mps_main.shtml
Thanks!
Baktash